63444002154 has 16 divisors (see below), whose sum is σ = 136648620192. Its totient is φ = 19521231408.

The previous prime is 63444002131. The next prime is 63444002179. The reversal of 63444002154 is 45120044436.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406692244 + ... + 406692399.

It is an arithmetic number, because the mean of its divisors is an integer number (8540538762).

Almost surely, 2^63444002154 is an apocalyptic number.

63444002154 is an abundant number, since it is smaller than the sum of its proper divisors (73204618038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63444002154 is a wasteful number, since it uses less digits than its factorization.

63444002154 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 813384661.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 63444002154 in words is "sixty-three billion, four hundred forty-four million, two thousand, one hundred fifty-four".